Paper-feeding mechanism.



N0.'7s4,297. PATENTED JULY 21, 1903. J. BURRY. PAPER FEEDING MECHANISM.

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PAPER FEEDING MECHANISM.

APPLICATION FILED JULY 17, 1901.

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PAPER FEEDING MECHANISM.

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PATENTED JULY 21, 1903.

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PAPER FEEDING MECHANISM.

APPLICATION FILED JULY 17. 1901.

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J. BURRY.

PAPER FEEDING MECHANISM.

APPLIOATIDN FILED JULY 17. 1901. K0 MODEL 8 SHEETS-SHEET 5.

PATENTED JULY 21, 1903.

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LBURRY. PAPER FEEDING- MECHANISM.

APPLICATION FILED J'ULY 17, 1901.

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PATENTBD JULY 21, 1903.

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APPLICATION FILED JULY 17- 1901.

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we Nonms Prrzns co. moroumn. WASHWJITON n r No. 734,297. PATENTED JULY 21, 1903.

J. BURRY.

PAPER FEEDING MECHANISM.

APPLICATION IILBD JULY 17. 1901.

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Patented .l'uly 1903.

PATE T OFFICE.

JOHN BURRY, OF RIDGEFIELD PARK, NEW JERSEY.

'PAP'ER-YFYEEDING MECHANISM."

SPECIFICATION forming part of Letters I'atent No. 734,29 7,-da.ted July 21, 1903. r

Original application filed April 13, 1900, Serial No- 12,660- Divided and thisapplination filed July 17,1901. SerialNo. 68,6 19. (No model.)

This application is a division of my prior application for Letters Patent of the United States, filed April 13, 1900, Serial No. 12,660,

now Letters Patent numbered 680,693, dated August 20, 1901.

The present invention relates to mechanism for feeding paper in La step-by-step manner in an automatic manner in printing-telegraph and like machines.

One object of this invention is to feed pa- 'per from a roll .in a step-by-step manner by escapement-controlled power-driven mechanism.

Another object is to store power automatically for operating such feeding mechanism. Yet another object is to avoid damage to an actuating-spring for such mechanism.

Another object is to secure substantially uniform linespacing when the escapement is connected directly with the spool onwhich a web of paper is wound.

Other objects will-appear hereinafter.

To these ends the invention consists of features ofconstruction and combinations of devices hereinafter described, and moreparticularly pointed out in the appended claims.

One form of the invention is illustrated in the accompanying drawings, forming part of this specification, in which Figure 1 is an end view, with parts 0mitted, of a machine in which the invention is embodied. Fig. 2 is a plan of the same, certain parts not essential to an understanding of the presentinvention beingomitted for the sake of clearness. Fig. 3 is a view, partly in vertical section, of mechanism shown in the preceding figures. Fig. 4 is a horizontal plan, partly in section, of the same. Fig. 5 is a detail viewof spring-winding mechanism. Fig. 6 is a view showing certain positions of certain parts. Fig. 7 is alike view showing said parts in other positions. Fig. 8 is a detail view of a mounting for the bobbin or spool. Fig. 9 is a detail view in section of an arm and asliding pawl-carrier a rearview, on the scaleof Fig. 10, of the same; and Fig. 12 is aplan, on the same scale as Fig. 10, of the same mechanism.

7 The framework comprises a base-plate a,

three vertical plates 1 0 cl, secured to base a, and tie-rods and plates joining plates 6 c d together.

The paper used in the apparatus shown in the drawings is in the form of a web wound to form a roll, the web being several inches wide and the writing being done transversely of the web. The web 1 is wound on a wooden bobbin or cylinder 2, which is bored through 'longitudinally to receive a shaft 3, by which the roll issupported in the machine. At one end the shaft 3 sets into a socket in a shaft 4 of a large ratchet-wheel 5 and at its other end is held in anopen bearing in a pivoted spring-arm 6. A collar 7 on the shaft 3 prevents said shaft from sliding out of the bobbin as long as the arm 6' engages with the end of the shaft. The arm 6 is held up by a tooth 8, which is oblique or slanting on one side to cause a wedging-off action on-the arm 6 as the latter is lifted into position for holding the shaft 3. The web 1 passes from the underside of the roll up in front of a platen 19, against which it bears, and thence upward and backward between feed-wheels 9 and pressure-rolls l0.

The wheels 9 are loosely mounted upon a shaft 11, which is journaled in a lug on top of plate (Z, and in a detachable bearing 12 on the plate I). The shaft 11 is provided with two circumferential grooves13, and the hubs of the wheels 9- have screws 14, which engage with threaded holes therein andwhich extend into said grooves 13, thus permitting .the wheels 9 to move circumferentia'lly but not to move longitudinally of the shaftll. The hub of each wheel 9 is also provided with a circumferential groove 15, arranged toreceive one end of a coiled wire spring 16, Fig. 2, there being a spring 16 for each wheel 9. About its middle the shaft 11 is provided with two circumferential grooves 17, Fig. 5, for receivin the other ends of said springs 16. The springs 16 grip the hubs of the I wheels 9, but do not touch the shaft 11 until near the grooves 17, where they grip the shaft and have their ends resting in the grooves 17. The springs 16 are Wound in reverse directions,and each is by preference set to have its coils increased in diameter as the spring is put under more tension, as hereinafter set forth, so that when said tension reaches a certain maximum the ends of the springs slip on the shaft lland overwinding of the springs is prevented.

The means shown in the drawings for putting the springs under tension comprise a worm-wheel 18, loose on the shaft 11, a worm 19, meshing with wheel 18, Fig. 3, a ratchetwheel 20, fast on shaft 11, a pawl 21, pivoted on worm-wheel 18, a spring 22, fast to wheel 18 and bearing on pawl 21 to press itinto engagement with the ratchet 20,a ratchet-wheel 23, fast on the shaft 24 of the worm 19, and a spring arm or pawl 25, fast on the shaft 26 and coacting with the ratchet 23. The shaft 24 is journaled in lugs or cars on or detachably connected to the plate 61, Fig. 3, and there is a fly-wheel 27 fast to said shaft 24, the fly-wheel acting to continue the wind-. ing action by continuing the motion of the shaft 24 after the pawl 25 ceases to turn it. The worm 19 turns the worm-wheel 18, and the motion is communicated to the shaft 11 through the described connections between the shaft 11 and the worm-wheel 18. The shaft 11 puts the springs 16 under tension when turned by said devices.

The pressure-rolls 10 are rotatably mounted in forked arms 28, Fig. 2, and these are pivoted at 29 in lugs or ears 30, fast to the plates 1) (1. Each arm 28 is formed with an angular part or corner 31, against which springs 32 bear to hold the rolls 10 against wheels 9 or away from them, according to which side of the corners 31 the said springs hear. The springs 32 are fast at one end to the cars 30. The rolls 10 are faced with soft rubber on their peripheries and coact with the toothed peripheries of the said wheels 9, thus giving the feeding devices a good grip upon the web 1 near the edges thereof.

The shaft 11 has a disk 33 fast thereto between the said grooves 17, said disk being equal in diameter to the wheels 9 and supporting the web 1 at a point intermediate the feed-wheels. The shaft 11 also has a handwheel 34 fast thereto at a point overlying the plate I), which plate is recessed to provide room therefor. The hand-wheel 34 is used for putting the springs 16 under tension when a fresh roll of paper is put in the apparatus, as the springs 16 run down of themselves as soon as the resistance due to the letting-0E mechanism ceases.

- The springs 16 are wound continually during the operation of the entire apparatus (as more fully setforth in said prior application) and tend to turn the wheels 9, and so to draw the web 1 forward. The web is held against forward motion and is released from time to time by automatically acting mechanism such as that shown in the drawings and now to be described.

The bobbin 2 has a pin 35 projecting from that end thereof which comes against the wheel 5, said pin projecting between two of the spokes of said wheel and turning the wheel when the said springs 16 are allowed to draw the paper between the wheels 9 and rolls 10, and said wheel 5 is released for that purpose. The wheel 5 is prevented from turning under the pull of the springs 16 and the web 1 by a detent 36, Fig. 3, which engages with the wheel. The detent 36 is fast on a shaft 37, which is jonrnaled in the plates 0 d. The shaft 37 is provided with an arm 38 thereon outside of the plate 0. A spring 39 bears against said arm 38 in such wise that the shaft 37 is turned to keep the detent 36 in engagement with the wheel 5. The spring 39, Fig. 2, is fast at one end to the arm 38 and at its free end bears in a groove in a pin 40, projecting from the plate 0.

The ratchet-wheel 5 and the detent 36 form part of an escapement mechanism by means of which the web 1 is permitted to be unwound from the roll by the pull exerted thereon by the springs 16. A lever 41, Fig. 3, is pivoted or fulcrumed intermediate its ends on a pin 42, projecting from the side of plate d, and it is connected with the detent 36 by a link or rod 43, which is pivotally connected with both detent and lever. The rear end of the lever 41 has an arm 44 pivoted thereto by a pin 45. A spring 46, fastened to lever 41 and hooked to the arm 44, acts to move the arm in a plane parallel to the plane of the wheel 5 and away from the detent A stop-screw 47, adjustable in a standard 48, rising from the base 0., serves to limit the rearward motion of the arm 44 under the influence of the said spring 46. arm 44 has a parallel-sided through-slot, Fig. 4, extending from its lower end vertically, and a pawl-carrier 50, I-shaped in section, is guided in said groove or slot and is held up by a spring 51, which connects the carrier and the arm 44 and draws the carrier 50 to the upper extreme of its motion. The working tooth 52 on the carrier 50 is normally out of engagement with the teeth of the wheel 5, as shown in Fig. 3. Whenever the shaft 37 is moved against the force of spring 39, the detent 36 is moved down out of engagement with the wheel 5 and through the link 43, lever 41, arm 44, spring 51, and carrier draws the pawl 52 up into engagement with the teeth of the wheel 5. The spring 51 allows of the disengagement of the detent 36 from the wheel 5 after the pawl 52 is in position to engage with or has engaged with a tooth of the wheel 5. As soon as the detent 36 is out of engagement with the wheel 5 the web 1 is drawn upward by the action of the springs 16 until the arm 44 is arrested in some manner. Inasmuch as the roll decreases in size The IIO

site that the pawl 52 have a variable throw in order that the lines of writing maybe uniformly spaced upon the paper.

According to the present invention the devices for governing the motion of the pawl 52 circumferentially of the said wheel 5 to'cause the pawl to have a variable throw are themselves controlled in their action by the roll of paper,-so that .as the diameter of the roll decreases the throw of the pawl increases. In the instance shown in the drawings the said throw of the pawl 52 is controlled by a slide 53, which has an arm 54, adapted to rest on top of the roll of paper, and a stop-arm 55, adapted to coact with the arm 44 to limit the motion thereof toward the detent 36'as the paper is drawn from the roll by said springs 16 and the mechanism operated thereby. The

slide 53 moves in a vertical groove 56 in the side of the-plate d, being held in place by bars 57, secured by screws to plate 01. The

vertical line, while that surface of arm 44 which coacts therewith is straight, but is inclined to the vertical and gets farther and farther away from the guideway 56 toward the bottom of the machine, said pawl 52 being at the under side of the wheel 5. From this arrangement of parts it results that as the stop 55 moves down the arm 44 has more and more throw before it is arrested by the stop 55, so that the decreasing diameter of the roll of paperdoes not-result in the crowding together of the lines. On the contrary, the lines are at substantially uniform distances apart, the slight error introduced by giving the stop 55 a straight course and the back of the arm 44 (that coacting with the stop 55) a straight edge not being perceptible, or at least not causing any disadvantageous crowding together of the lines. The motion downwardly of the stop 55 is governed by the diameter of the roll of paper, since the arm 54 rests on the roll directly over the axis thereof and follows the roll as the diameter thereof decreases, so that as the roll decreases in size the pawl 52 has more and more throw before it is arrested by the stop 55.

The references 58 59 indicate two electromagnets, which in the printing-telegraph instrument wherein the present invention has been used are in different circuits controlled by the same set of keys, there being one key for each letter or character printed.

- 60 is an electromagpet, the circuit through which is controlled by said magnets 58 59, as in said prior application is more fully set forth.

61 designates the armature for magnets 58, and 62 a shaft to which said armature 61 and lever 63 are fast.

64 is a spring for drawing lever 63 against stop 65 and armature 61 away from magnet 58.

66 is a spring-arm fast to lever 63'and adapted to engage behind a stop 67.

' 68 is the armature of magnet 59, and 69 is a bell-lever fast to same shaft as armature 68. v

70 is a stop for lever 69. The lower end of the lever 69 has a catch 71 pivoted thereto,

said catch having two pins 72 projectingtherefrom, between which the arm 66 passes.

73 is the armature of magnet 60, and 74 is a shaft to which armature 73 and lever 75 are fast, and 76 is an extension of lever 75. The extension 76 is adapted to cam the oblique end of springarm 66 from engagement behind stop 67, whereby the arm 66 is permitted to throw the catch 71 from the position thereof shown in Fig. 1 to the position thereof shown in Figs. 6 and 7.

77 is a stop for lever 75, and 70 and 73 are returning-springs for levers 69 and 75. Armature 68 and lever 69 are fast upon the shaft 26, above mentioned, to which shaft the pawl 25 is also fast. 1

Inthe machinein which the present invention has hitherto been used the magnets 58 59 are energized every time a key is depressed, the circuits being so arranged that magnet 58 is energized before magnet 59 is.

The energizing of magnet 58 draws down ar-- mature 61, raises lever 63, and puts springarm 66 under tension, said spring arm 66 being caught at this time behind stop 67, as shown in Figs. 1 and 2. The later energizing of the magnet 59 draws its armature to the left in Fig. 1, and this moves lever 69, thus carrying the catch 71 to the left in Fig. 1 above the rabbeted end of the arm 38. As set forth in said prior application, the circuit through magnet 60 is controlled by the magnets 58 59, whence it follows that the lever 75 is not lifted until after lever 69 has been moved, as above stated, whereby the re loo lease of the arm 66 from stop 67 by the arm ceases to rotate the shaft 24. During the above described operations the detent; 36 holds ratchet-wheel'5 from turning under the pull on the bobbin by the weband springs16.

When it is desired to feed the paper forward for a new line, the operation follows the'printing of a character by the following sequence of operations: As above, stated,

printing occurs every time the magnets 58 59-are energized in that order by the closing or shunting of a circuit through the mag- I The magnets 58 59 are in inde-'- net 60. pendent circuits, and if these two circuits are broken simultaneously after the printing of a letterno line-feed of the paper. takes:

place. If, however, the proper one of said 'circuits be broken and then remade after place. Thus, after a letter has been printed and before the key is released the circuit through the magnet 59 is broken, whereupon armature 6S and lever 69 resume the positions thereof shown in Fig. 6, and this breaks the circuit through the magnet 60, and its armature thereupon returns to the position thereof shown in Fig. 6. The return of lever 69 to normal position (see Fig. 6) draws the catch 71 back over the end of arm 38 until the spring-arm 66 throws the catch 71 into engagement with-the rabbeted end of the arm 38, as shown in Fig. 6. The circuit through magnet 59 is now made again, whereupon the armature 68 and lever 69 are drawn to the positions thereof shown in Fig. 7, and catch 71 moves the lever or arm 38 to the position thereof shown in Fig. 7, thus giving shaft 37 a partial turn. This partial turn of the shaft 37 is sufficient to move detent 36 out of engagement with the wheel 5 and to draw pawl 52 up into engagement with said wheel, whereupon the springs 16 rotate the shaft 11 and feed-wheels 9 10 and draw the web 1 from the roll until arm 44 is arrestedby the stop 55. Upon releasing the depressed keys (or key) the circuits through magnets 58, 59, and are broken, and the springs 39, 64., 46, and 73 restore the parts to the positions thereof shown in Figs. 1, 2, and 3.

The invention is susceptible of embodiment in forms other than that shown in the drawings and hereinbefore described. I do not therefore restrict this specification and claims to the precise form above described.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

1. The combination of a rollof paper, a rollholder,a springactuated feed device for drawing the paper from said roll, and variable escapement mechanism for controlling the rotation of said holder, substantially as described.

2. The combination ofa roll of paper,springoperated means for unwinding said paper from said roll, and a variable escapement mechanism for controlling the action of said spring means, substantially as described.

3. The combination of a roll of paper, a feed- Wheel, a presser coacting with said wheel to feed the paper from said roll, a spring for rotating said wheel, and electromagneticallyoperated means for winding said spring, with escapement-mechanism for governing the retation of said roll, substantially as described.

4. The combination of a roll of paper, a feedwheel, a presser coacting with said wheel to feed the paper from said roll, a spring for rotating said wheel, electromagnetically-operated means for winding said spring, and escapement-controlled roll-holding means for controlling the action of said spring, substantially as described.

5. The combination of a roll of paper, a feedwheel, a presser coacting with said wheel to feed the paper from said roll, a spring for rotating said wheel, electromagnetically-opeiated means for winding said spring, a rollholder, and a variable escapement mechanism for controlling said holder, substantially as described.

6. The combination of a roll of paper, afeed wheel, a presser coacting with said wheel to feed the paper from said roll, a spring for actuating said wheel, electromagnetically-operated means for winding said spring, a rollholder, an escapement for controlling said roll-holder, and a movable stop controlled by the thickness of the roll for varying the throw of a movable member of said escapement, substantially as described.

7. The combination of a roll of paper, a rotatory shaft, feed-wheels on and rotatable independently of said shaft, spring connection between said shaft and said wheels and frictionally connectedwith at least one of said parts, pressers coacting with said wheels to feed the paper from said roll, electromagnetically-operated means for rotating said shaft to wind said spring connection, a roll-holder, and an escapement mechanism controlling said holder, substantially as described.

8. The combination of an escapement-controlled roll of paper, a rotatory shaft, feedwheels on and rotatable independently of said shaft, springs connecting said shaft and wheels, each spring being frictionally connected with one of said wheel and shaft ele ments to slip at a given tension, electromagnetically-operated means for rotating said shaftto wind said springs, and pressers co acting with said wheels to draw the paper from said roll, substantially as described.

9. The combination of a roll of paper, a rollholder,avariable escapement mechanism controlled from said roll and controlling the rotation of said holder and roll, a rotatory shaft, feed-wheels on and rotatable independently of said shaft, springs for connecting said shaft and wheels and frictionally connected with one of said shaft and wheel elements, electromagnetically-operated means for rotating said shaft to wind said springs, and pressers coacting with said wheels to draw the paper from said roll, substantially as described.

10. The combination of a roll of paper, spring-operated means for unwinding said paper from the roll, a ratchet-wheel connected to and rotating with said roll, a detent and a pawl movableinto and out of engagement with said ratchet-wheel, said pawl being mounted to move with said wheel while engaged therewith, and a movable stop controlled in its motion by said roll and variably limiting the throw of said pawl, substantially as described.

11. The combination of a roll of paper, spring-operated means for unwinding the paper from the roll, a ratchet-wheel connected to rotate with said roll, a detent and a pawl movable into and out of engagement with said wheel, said pawl being mounted to move with said wheel while engaged therewith, a mov- Y 734,297 at able gravity-operated stop for variably limiting the throw of said pawl, and an arm connected with said stop and resting on the top of said roll to control the motion of said stop, substantially as described.

12. The combination of a roll of paper, spring-operated means for unwinding the paper'from the roll, a ratchet-wheel connected per from the roll, a ratchet-wheel connectedto rotate with said roll, a detent and a pawl movable into and out of engagement with said wheel, said pawl being mounted to move with said wheel while engaged therewith,a lever connected with said detent to operate the same, an arm pivotally connected with said lever and provided with a guideway for said pawl, a spring connecting said pawl and arm, and stops for limiting the motion of said arm and pawl, with a returning-spring for said arm, substantially as described.

14. The combination of a roll of paper, spring-operated means for unwinding said paper from the roll, aratchet-wheel connected to rotate with the roll, a detent and a pawl movable into and out of engagement with said wheel, a lever connected with said detent, an arm pivotally connected with said lever and provided with a guideway for said pawl, a spring connecting said pawl and arm, a fixed stop at one side of said arm for limiting the motion thereof in one direction, a movable stop at the other side of said arm for variably limitingthe motion thereof in the other direction, connections between the last named stop and the roll for controlling the motion of the stop, and a returning-spring for said arm, substantially as described.

15. The combination of a roll of paper, spring-operated means for unwinding the paper from the roll, a ratchet-wheel connected to rotate with the roll, a detent and a pawl movable into and out of engagement with said ratchet-wheel, a lever connected with said detent, an arm pivotally connected with said lever and provided with a guideway for said pawl, a spring connecting said pawl and arm,

a fixed stop at one side of said arm, a gravity- 6o moved stop at the other side of said arm for variably limiting the motion of the arm and pawl, an arm resting on top of said roll andconnected with said movable stop to control the motion thereof, and areturning-spring for said pivoted arm, substantially as described.

16. The combination of a roll of paper, a ratchet-wheel rotated thereby, a lever fulcrumed at a point adjacent to the axis of said wheel, an arm extending at an angle to and pivotally connected with said lever and substantially radially of said wheel, a pawl movable on and in the direction of the length of said arm, a spring for said pawl, adetent for said wheel, a connection between the detent and the lever, stops for limiting the motion of said pivoted arm, and means for keeping the strip or web of paper under tension, substantially as described.

17. The combination of a roll of paper, a

ratchet-wheel rotated thereby, a lever fulcrumed at a point adjacent to the axis of said wheel, an arm extending at an angle to and pivotally connected with said lever and substantially radial of said ratchet-wheel, a pawl movable on and in the direction of the length of said arm, a spring for said pawl, a detent for said wheel, a connection between said detent and said lever, a fixed stop for said arm,

a stop movable in a direction forming an acute o angle with said arm and coacting with said arm at variable distances from the pivot thereof, means connected with the roll-and controlling the motion of said stop, and means for keeping the strip or web of paper from said roll under tension,and a returnin g-sprin g for said arm, substantially as described.

- Signed at New York, in the county of New York and State of New York, this 16th day of July, A. D. 1901. r

' JOHN BURRY.

Witnesses:

RITA BRADT, R. W. BARKLEY. 

